Is there an accepted definition of what goes into an amber accord? In your ambergris post you said, "what is typically considered an amber accord (labdanum, benzoin, vanilla)." I think I smell benzoin and vanilla in my sample of MPG Ambre Precieux. Or does each perfumer use his/her idea of what smells correspond to an amber color? If, as Luca Turin says, amber is, "the refernece smell of the Maghreb and Middle East street market," it seems like there should be a standard set of ingredients, even if the proportions are varied.